Richard Marx is best known for soft '80s ballads like "Right Here Waiting," but he wasn't so mellow when an unruly passenger began attacking flight attendants on his flight from Vietnam to South Korea Tuesday. Marx's wife, former MTV VJ Daisy Fuentes, shared photos to her Instagram account of the singer helping to subdue the passenger, NBC News reports. Fuentes says Marx jumped in after the passenger "started pushing the female staff and pulling them by the hair." She says flight attendants struggled to deal with the man and didn't seem to know how to use a stun gun or apply rope restraints properly.
Fuentes says the passenger's "crazy" behavior continued for four hours, almost the entire length of the flight to Seoul from Hanoi, where Marx played a concert Monday night. The passenger, identified by South Korea's Yonhap News Agency as a 34-year-old South Korean man, was arrested after the plane landed in Seoul. Korean Air confirmed that the incident happened Tuesday and is being investigated, the AP reports. In a Facebook post, Marx said the intervention was no "big 'hero' move," and he "just did what I would hope anyone would do in the same situation." (Read more unruly passenger stories.)